Constant of Proportionality

Front

What is the constant of proportionality?

Back

The constant of proportionality is the constant value (k) that relates two proportional quantities, often expressed as y = kx.

Front

If y = 2x, what is the constant of proportionality?

Back

k = 2

Front

If y = 1.50x, what is the constant of proportionality?

Back

k = 1.50

Front

What does a constant of proportionality of k = 6 mean in a proportional relationship?

Back

It means that for every unit increase in x, y increases by 6 units.

Front

How do you find the constant of proportionality from a graph?

Back

Identify the ratio of y to x for any point on the line; this ratio is the constant of proportionality.

Front

What is the unit rate in a proportional relationship?

Back

The unit rate is the constant of proportionality expressed as a value per one unit of x.

Front

If $100 is earned for each hour worked, what is the constant of proportionality?

Back

k = 100 (dollars per hour).

Front

In the equation y = kx, what does k represent?

Back

k represents the constant of proportionality.

Front

If a graph shows that 40 is the output when the input is 1, what is the constant of proportionality?

Back

k = 40.

Front

What does it mean if k = 2/3 in a proportional relationship?

Back

It means that for every 3 units of x, y increases by 2 units.